He who desires to be in an assured state, to have continual fellowship with God, to attain to a higher level of illumination & experience, and to fear God steadfastly, let him strictly observe his devotional time and let him not be neglectful in this.
If you have been overcome by darkness, do not give up courage, for many of the godly come into this condition. It is not a sign of being without grace.
He who is lazy in temporal matters will be lazy in spiritual matters, and he who is diligent in spiritual matters will be diligent in temporal matters.