Last night, I dreamed that Tathagata was talking to me, just like talking about my past life.

Dreaming of what the Tathagata said to you is like talking about your past life. This dream may show that you have deep feelings about past experiences or emotions.

In Buddhism, Tathagata is regarded as a symbol of wisdom, compassion and strength, representing the realm of truth and nirvana. When you dream of talking to the Tathagata, it may be that you feel connected with this wisdom and want to be guided or inspired.

It should be noted that dreams can't reflect reality completely and accurately, and often contain many subjective factors and imaginative elements. Therefore, we don't have to be too obsessed with dream interpretation, but should strive to pursue our dreams and goals in real life and maintain a positive and optimistic attitude towards life.