The collapse and corruption of most Christian churches is an aspect of the convergence of modern Western institutions, and consequently many Christians cannot find a church which both
1. Will accept them as a convert, and
2. Is worth joining (i.e. really Christian rather than a Leftist political fake, as is usual);
This means that there are going to be many lone Christians - that is, many Christians who pursue their religion rooted outside of any church.
'Rooted outside' means that someone may attend or support a church, or several churches, with varying degrees of intensity and seriousness - but he does not consider himself to be an obedient or devout member. His belief is primarily individual rather than institutional. Such a situation is de facto the case even with respect to many devout church members - in actuality they base their faith and practice upon their own discernment and judgment.
Lacking the benefits of institutional membership, protection and support - there must be some up-front, proximate compensation for these 'lacks' - or else real Christianity will be so negative, so bleak, so unrewarded, so unappealing as to be a non-viable life-path.
This means that the individual modern Christian normally requires to be sustained by a much greater spiritual-experiential element than was the case in the past - the lone Christian needs to experience direct contact with the divine in prayer, meditation and other aspects of daily life.
And this awareness needs to be conscious and explicit.
For example, we all experience everyday miracles, but very few people are explicitly aware of them - however, the lone Christian needs to become conscious of these many ways in which God intervenes in his daily life. And all Christians have an unique destiny, due to the uniqueness of their-divine selves - but the lone Christian needs to be aware of treading this path - and of when he has stepped-off it.
Having spiritual ('mystical') experiences used to be very much an 'optional extra' for observant church-obedient Christians of the past - indeed 'esoteric' experience was often regarded as a hazardous (because self-indulgent) possibility, and better avoided.
But things have now changed; and more and more serious Christians will need to develop their capacity for, and awareness of, spiritual experiences - if they are to remain Christian.