From Jeffrey Gan (KL)
Perhaps I can put my comments on the issues raised recently, and trust that it
can be added as general information.
1. Bread & Cup - Melchisedek
The use of bread & cup in the time of Melchisedek, is the type of the shadow of
our Adonia Yeshua as seen in Melchisedek as in Hebrews 7: 1 - end. Notice the
eternal terms used to describe Melchisedec as a type of Adonai Yeshua as in:
            Heb 7:1 - most High God
            Heb 7:2 - King of Righteousness, King of Peace
            Heb 7:3 - neither having beginning of days, nor end of life 
            (I AM - Alpha & Omega - First & Last)
            Heb 7:3 - made like unto the 'Son of God'
            Heb 7:17 - thou art a priest after the order of Melchidzedek
            Heb 7:24 - Adonai Yeshua 'the unchangeable priesthood'
            Heb 7:26 - Adonai Yeshua 'an high priest became us, who is holy, harmless, undefiled, separate from  sinners, and made higher than the
A shadow of the future bread & cup in the times of Adonia Yeshua.
Since Abraham began observing the use of bread & cup - Israel today practices
these during the Shabbath remembrance. The significance of the bread refers to
His body, and cup - not just blood, but Kidusshin or covenant, marriage covenant
between the gathering of His people (Bride) and Adonai Himself (Bridegroom).
2. Bread and Cup - Passover
The Brit Chadasha of the bread & cup was introduced by our Adonai as the
substitude of  what John the Baptist declared 'Behold! The Lamb of God'. During
the last Supper, notice that 
a) It must coincide with the Passover Feast – where a lamb was to be slain & blood poured on the doorposts in
Egypt during Exodus and 
b) the disciples themselves asked 'where do we eat for the Passover Feast/Feast of Unleavened Bread'.
This is to bring to our attention on the 'Lamb of God' for the sacrifice of sin once and for all - as in Hebrews 9:26 '
put away sin by the sacrifice of himself'
That explains the time of the feast - in the time of the sunset (14 Aviv 3-6pm). However, the remembrance of 
the 'Lords Supper' in practice can be seen in the Acts of the Apostles i.e.
a) Acts 2:42 - Breaking of bread in line with prayers
b) Acts 20:7 - Rabbi Shaul broke bread on Sabbath (1st day of the week) &
continued in the ministry till midnight
That is why it is believed that 'as often as you eat in remembrance of me' is
taken as weekly observation, contrary to annual (yearly) when the passover
Feasts is observed - which is definitely once a year (Month of Aviv).
3. Two souls during Shabbath observation & use of sweet incense
A definite Kabbalah understanding of Shabbath & souls. What I can understand
(till now) is that the term 'two' souls - is simbolic, not literal. It means
that during the Shabbath rest - our souls are alleviated (risen) to the level of
God-centeredness and holiness - as if we would possess a different 'soul'
compared to the time when we are working. Some see it as literally ' 2nd soul'
means the soul of perfection and holiness compared to the current soul of
constant struggle in sin and in imperfection. I still believe in one soul, but
in different level of enlightenment - during Shabbath observations.
Spices for sweet incense is used during the sacrificial period (Exodus 30: 23 -
onwards). Spices that is sweet-smelling is part of 'spriritual aromatherapy' to
bring to the attention of a sweet smelling savour of sacrifice (Eph 5:2 'given
himself for us an offering and a sacrifice to God for a sweet smelling savour)
during worship.
It is optional, but to remember in Exodus 30:9 'Ye shall offer no strange
incense thereon, nor burnt sacrifice, nor meat offering; neither shall ye pour
drink offering thereon
No where in the Gospels, Acts or letters of Rabbi Shaul was incense used during
the breaking of bread, but it is repeated in the book of the Revelations! (Rev
8:3) - which means that the in final Millennium Shabbath time, incense of
sweet-smelling sacrifice will be reintroduced in the presence of worship.
It is assuring and comforting to know that we are worshipping the same Adonai
YH-V who is the same in the past, present and future.
Therefore, any form of worship that is instituted will bear the SAME CONSISTENT 
testimony and practice from Exodus to Revelation! 
Praise to the Adonai.
Jeffrey Gan

Related Link about Shabbat