Loa is a concept in Haitian Vodou that refers to spirits or deities who have specific responsibilities and powers. Imagine you have a group of friends who are all really good at certain things. One friend might be really good at singing, another might be really good at cooking, and another might be really good at playing basketball. Similarly, the loa are like your "friend group" of spirits who are each really good at specific things.
When people in Haitian Vodou practice their religion, they might call upon a specific loa to help them with a certain need or situation. For example, if someone was feeling really sick, they might call upon a loa named Papa Legba, who is the gatekeeper and protector of the crossroads, to help protect them from harm. Another loa named Erzulie Freda is often called upon to help with matters of love and relationships.
The loa are represented in various ways, including through symbols, songs, dances, and rituals. For example, Papa Legba is often represented by a walking cane, and the color associated with Erzulie Freda is pink. People might also offer gifts or sacrifices, such as food or flowers, to the loa as a sign of respect and gratitude.
Overall, loa are like a group of spirits who are each experts in different areas, and people in Haitian Vodou use their knowledge and powers to help them with their everyday lives.