The Life of St Symeon the New Theologian by St Niketas Stethatos

The Life of Saint Symeon the New Theologian by St Niketas
Stethatos is available from Amazon.

What a wonderful biography! I just couldn't stop reading.
God's love for man is beyond measure and indescribable. In
St Symeon's life we see God's eternal plan for man become
a reality.

 " Such a man was this great disciple of Christ, enduring what
was inflicted on him by deceitful people, but repaying with 
good deeds those who maltreated him. And so, since he was
like the Apostles and an imitator of Christ, when he was 
abused he did not return the abuse, when he suffered he 
offered no threats, when he was persecuted he endured,
when he was slandered he encouraged his slanderers, and he
rejoiced with unutterable joy in his tribulations, for he saw 
himself fulfilling Christ's beatitudes. Being like this and living
an apostolic life in accordance with the Gospel, Christ's blessed
disciple Symeon passed beyond the deceptive perception of 
this world. For while in his body he was going about among
people on earth, in his soul he was conversing intellectually 
(noetically- emphasis mine) with God through the Divine
Light and was living with the angels in heaven." p.261-263

The Lord Jesus Christ appears more than once to blessed
Symeon in His Uncreated Light, and he runs to his spiritual
father, Symeon Eulabes (the Pious) to tell him what is
happening. "The elder asks, 'What did you see child?', and
the disciple replies, 'Light, O my father, sweet, sweet!' So 
sweet indeed that the young man declares, 'I was moved to
streams of tears.' The elder then confirms the other's
experience, 'It is He child', and the novice, following the old
man's confirmation, is led to further revelations;

'he sees Him again and, little by little, comes to be completely
purified and, purified, grows bold and asks that One Himself
and says, 'My God is it You?' and He answers and says, Yes
I am He, Who for your sake became man." from St Symeon the
New Theologian On the Mystical Life: The Ethical Discourses Vol. 3 
Life Times and Theology p. 82, Translated by Alexander Golitzin, 
St Vladimir Seminary Press 1997

"The Life was written more than thirty years after Symeon’s
death by his disciple and apologist the theologian Niketas
Stethatos, who also edited all of Symeon’s spiritual writings.

An unusually valuable piece of Byzantine hagiography, it not
only presents compelling descriptions of Symeon’s visions,
mystical inspiration, and role as a monastic founder, but also
provides vivid glimpses into the often bitter and unpleasantly
conflicted politics of monasticism and the construction of
sanctity and orthodoxy at the zenith of the medieval Byzantine
Empire.

Although the many volumes of Symeon’s spiritual writings
are now readily available in English, the present translation
makes the Life accessible to English readers for the first time.
It is based on an authoritative edition of the Greek."
(from the front flap)
Translated by Richard P. H. Greenfield and Published by
Harvard University Press 2013 ISBN: 978-0-674-05798-2