This Letter by Imam Abu Hamid al-Ghazali has also been translated as 'Letter to a Disciple' and Published as a Book By Islamic Text Society, UK.
This book by Hujjatul Islam Imam al-Ghazali offers twenty four pieces of valuable advice to seekers of knowledge. It touches on all aspects of life, from material wealth and the love of this life, to Islamic etiquette and acquiring knowledge.
Imam al-Ghazali illustrates his ideas throughout with relevant quotations from the Quran and Hadith, as well as poetry and logical examples and clear analogies which demonstrates the need to cleanse ourselves of bad manners so that we can develop good characteristics.
This is certainly a powerful reminder of the importance of constantly identifying ourselves with the next life.