Spiritual state, at times inspired with purity and awe of Heaven, and at other times, etc.

Study chapters 27–29 and surrounding chapters in the Tanya. As our sages teach, effort is needed, but to receive extra support from Hashem, say the daily Tehillim, give tzedakah before davening, and use a mikvah. https://www.torahrecordings.com/rebbe/igroskodesh/011/007/3415