The author wants to show that he is a superstitious person
If you spoil someone you treat them with great or excessive kindness or generosity.
If you pamper someone you indulge them with a great deal of attention and comfort.
He wore a new dress everyday
The author's purpose in this passage is to inform. The author is informing the reader on how Elizabethans would typically store their food. It goes into details of differences between food types and some options for storing food and getting nourishment in summer and winter.