Unicorn totem reads:
In addition, if you cast a spell using a spell slot that restores hit
points to any creature inside or outside the aura, each creature of
your choice in the aura also regains hit points equal to your druid
Healing Spirit reads
Until the spell ends, whenever you or a creature you can see moves
into the spirits space for the first time on a turn or starts its turn
there, you can cause the spirit to restore ld6 hit points to that
creature (no action required).
Does this mean that the unicorn totem heals everyone in the party, within its aura, each time a party member enters the healing spirit area or is it only when the first party member enters the healing spirit area?