Okay kiddo, so grihastha is a fancy word from a religion called Hinduism that talks about something called the four stages of life. Grihastha is the second stage, which means householder.
Now, let's start from the beginning. When a person is born, they are in the first stage of life called the brahmacharya. This is when they learn and study as a student. Once they finish studying, they move on to the second stage - grihastha.
In the grihastha stage, a person gets married and starts a family. They focus on building a home, raising children, and taking care of their family. This stage is all about responsibility and taking care of loved ones.
During the grihastha stage, people work hard to earn money to support their family. They also learn about managing money, being a good spouse, and raising children. This is an important stage because it helps people learn important life skills that they will use for the rest of their lives.
After this stage, people move on to the last two stages called vanaprastha and sannyasa. But that's a topic for another day.
So, in short, grihastha is the stage in Hinduism where a person gets married, starts a family, and learns important life skills like managing money and being a good spouse.