Thomas à Kempis, born around 1380 in Kempen, Germany, became a significant spiritual director and is best known for his devotional work, 'The Imitation of Christ.' He entered the canons regular in 1399 and lived a life dedicated to guiding others until his death in 1471. The document reflects on the nature of temptations as part of life, emphasizing personal growth through them and God's presence during such challenges.