Whilst staying with the bishop he visited the monastery of Groenendael near Brussels, where in former times Ruysbroeck wrote.
Before long he was known far and wide as the “Good Cook of Groenendael.”
His successor, Lambert, the last of the Groenendael hermits, was so poor in spirit as not to be attached even to his cell.
The valley of Groenendael is far enough away from Brussels to be almost always deserted and silent.
Gerard continually strove to imbue his own disciples with the spirit which he had imbibed from the Prior of Groenendael.
The latter returned several times to Groenendael and resided there for months together.
It was more probably written during the early years at Groenendael.
It may be mentioned here that in 1409 the Priory of Groenendael was instituted the Mother-house of a congregation of that name.
His retreat at Groenendael, his ecstasies of composition, never kept him from those who wanted his help and advice.
This book too may well have been written before the retreat to Groenendael.