Think of it as an agreement. For every working with a spirit you both work on a goal.
For example a money working. You don’t get money by lying down on the couch, you have to get a source of income to generate more money.
So you could make an agreement, if you help me then I will hold my part of the deal too. For example. Help me with ascend, I will meditate daily and give you an offering (wine, or stone etc…).
Remember a pact is not always necessary. If you learn to get to know the entity, ask if a pact is needed for the job the entity helps you with!