If you think about the Memorial and the blood issue long enough, it's possible to see that the two things are closely related.
With the Memorial, JWs are "honouring" Jesus' sacrifice. In fact, in the brochure How Can Blood Save Your Life, there is a chapter entitled "The Blood that Really Saves", referring, of course, to Jesus' blood.
http://www.watchtower.org/library/hb/article_05.htm
However, at the Memorial only certain ones - "the anointed remnant" - are permitted to partake of the wine which symbolizes Jesus' blood that "really saves".
What about the rest of the probably 8-10 million people who will attend the Memorial, but not partake?? They do not receive "God's free gift" of spirit. So they must, by rejecting the wine, reject that Jesus' sacrifice was made on their behalf. Their "salvation" is not guaranteed. They are required to prove themselves by works 'befitting salvation'. These are defined by the WTS as sharing in the door-to-door work, meeting attendance, and literature placements. True Christian works of love and charity are not even considered worthy of their time.
So the Memorial serves as a huge reminder of the average JWs unworthiness for salvation. The act of not partaking reinforces that feeling of unworthiness.
When the blood issue comes up, there are even further psychological messages that reinforce the person's unworthiness. To partake of blood by receiving a transfusion in order to save one's life is a statement that the life one has here in this "system" has worth and value. Yet, when someone rejects blood from another person, the unworthiness of the person's life is reinforced, they feel their best chance is to die "faithful" and be released from their worthless life here and now, thinking that it will somehow sanctify them and make them worthy of a resurrection. The keeping someone from accepting a blood transfusion by reminding them of the possibility of a resurrection, also reinforces the lack of value that JWs place on their lives in the here-and-now.
The message is quite clear: if you get sick and need blood, you are better off dead. The message from the Memorial is: Your salvation is precarious, there are no guarantees and your only relief comes with death. You're better off dead.
It would be interesting to study this in terms of subliminal messages and subconscious thoughts.
Oh yeah, I forgot. The WTS doesn't want JWs talking to "shrinks" about their religion. I wonder why?
Love, Scully