Position of an altar

[Cecil Lee]

1. Please see attachments.
2. In one of the attachments "in red": A, B, X and Y.
2.1. Originally, the recommended altar 1st choice position was in position A. Or at worst position B.
2.2. Client asked whether she could position the altar at location Y. In the illustration; one can see that if the bedroom door is in an open position; the pillar at marking X would become a poison arrow (sha qi) aimed towards the proposed altar location. Which is not ideal.