Jumia Books The Tibetan Yogas Of Dream And Sleep Tenzin Wangyal ,

"If we cannot carry our practice into sleep," Tenzin Wangyal Rinpoche writes. "If we lose ourselves every night, what chance do we have to be aware when death comes? Look to your experience in dreams to know how you will fare in death. Look to your experience of sleep to discover whether or not you are truly awake."
 

This book gives detailed instructions for dream yoga, including foundational practices done during the day. In the Tibetan tradition, the ability to dream lucidly is not an end in itself, rather it provides and additional context in which one can engage in advanced and effective practices to achieve liberation.