Okay kiddo, so Tantras are a special type of text in Buddhism. They are kind of like instructions for things you can do to help your mind become wiser and happier.
In these instructions, they talk about different ways to meditate and rituals you can do to help you focus and become more mindful. They also talk about different spiritual beings called deities or Buddhas, who are helpful guides on your journey.
The overall goal of these instructions is to help you realize that everything is connected, and to help you become more compassionate and loving towards yourself and others.
It's important to remember that Tantras are not meant to be taken literally or at face value, and that they should always be read with guidance from a teacher or spiritual leader. They are just one tool to help you on your spiritual path.