My heart is like a March, and my feelings are like a boat.

My heart is like a stream in March: in March, the weather is warm, the spring breeze awakens the earth, and the ice and snow melt into a stream, indicating the bud of spring.

Love is like a lonely boat: a lonely boat, uncertain, lonely, love is like a lonely boat, indicating that there is no partner and no feelings.

Two sentences together describe a person's desire for love.