After planting the seeds in the palm statues it allows players to activate travellers blessings, if you pull up the map while in the pale heart you will see the blessings. The blessings on the left are passives that you can have active if you find them, and can select which one you'd prefer to use while in the pale heart. The right are also found throughout the pale heart like the ones on the left, but must be activated by going to the flowers of an already planted seed in the palm statues to then activate them for use with a limited timed buff.