The most important things to do are to Pray regularly and to raise your Channeling skill.
Channeling is raised by casting spells and benefits from sleep bonus. The fastest way to raise Channeling is to have a large supply of valuable items to [[Sacrifice]], so that you have more favour in a shorter time and to sacrifice especially while you have sleep bonus. Initially, Bless raises Channeling fastest and getting to 15-20 Channeling using only Bless is fairly easy. About a week. For '''Vynora''' priests. You should start casting Opulence at around 15 Channeling for slightly faster skillgain.
[[Farming]] (not Libila) and making [[Rope]] is one way for priests to get high value items to sacrifice. It is certainly going to be faster to have village support to make you other high value items, such as jewellery, for you to sacrifice.
Making ropes is also a valuable skill its its own right and ideal for priests. Priests can be somewhat frustrating characters to have as alts, since they cannot do an awful lot, though see below. Be aware tho though that a priest can '''create''' stuff in every skill that is not prohibited so they do still have some potential to learn skills and be of use.
=== Other Useful Priesting Passtimes ===