Writing songtexte, or lyrics as they are known to songwriters, is the process of organizing and writing words into songs. The goal is to convey what a writer wants to say in a way that will make people want to listen.
First and foremost, have a clear idea of what you are trying to say. This might be a specific event, a person, or something in the world. Once you have your theme and topic, start brainstorming. This could be on paper, in your computer, or even with a creative collaborator.
The most important thing to remember when it comes to lyrics is that they have to fit with the music. They should have a similar number of syllables to the music, and they should be well-organized in terms of rhythmic parallelism.