The 2nd/Second House in your birth/natal chart is all about the values that you hold dear. For most of us, our worth and value stems from money and material items, which is why many interpretations of this house are about generating income, and how to utilize it all to be rich.
The 2nd house is a Succedent or supportive house, as it supports and follows the 1st house of Identity. You cannot sustain an identity, if you have no self worth.
Please check out my personal interpretations for the signs and planets in the 2nd house after you watch this video I made on the subject.