I’m not a person who believes in beschert, pre-destined, but – there may be exceptions, and, as my teacher Rabbi Dr Louis Jacobs said, quoting Solomon Schechter ‘the best theology is inconsistent’.

I walked out of the Conservative Yeshivah into the Jerusalem street and there he was in front of me, a beautiful young black Labrador. He wore that jacket which tells people like me, who’re too much inclined to strike up conversations with every dog they meet, that he was in training and strictly not to be distracted.

I asked the young woman who was walking him: ‘He’s going to be a guide dog’, she explained. He’s just eight months old and I’m his carer for the year.’

I couldn’t believe it. This is the day before I’m due to run the Jerusalem Marathon in aid of Toby’s very organisation, the Israel Guide Dog Centre. I apologised for thus accosting her puppy out of the blue and told the girl what I was doing. ‘His name’s Toby’, she then said. I don’t think she wanted me to get too familiar with her hound. ‘And you’re welcome to take pictures.’

Then, as we went our separate ways at the corner, she added: ‘When my father’s friend went blind we saw how important dogs are. We’ve been deeply involved ever since.’

The encounter felt like a blessing, a token of good luck from heaven.

As I walked away I found myself thinking about the girl’s words: ‘We saw how important…’

They are so many ways of seeing, and not seeing.

The world is full of beauty. ‘Lift up your eyes and see who created these’, says Isaiah; I’d always thought he was referring to the stars, but it could be trees, or clouds, or flowers, or human faces, all the wonder of which, in our rushed lives, we so often fail to take note. To lose one’s sight is, in Milton’s famous lines, to have beauty at ‘one entrance quite shut out’. It must be an extremely painful loss.

Yet there are different ways of seeing and being enabled to see. In rabbinic Hebrew a blind person is referred to as Sagi Na’or, a person of great light. The verb for seeing, ro’eh, is often used in the Bible to refer to other and deeper kinds of awareness and emotional sensitivity. God ‘sees’ the sufferings of human beings; God ‘knows’. People, too, often ‘see’ the pain of others, and their own.

Such usage is by no means unique to Hebrew. Shakespeare gives searing expression to this relationship between sight and insight when the maddened King Lear meets the blinded Earl of Gloucester on the cliffs above Dover. ‘No eyes in your head nor no money in your purse, yet you see how this world goes?’ the crazed King challenges. ‘I see it feelingly’, the former Earl replies. He did not of course see it with any such feeling when he had his eyes, his title and his power.

That is not to glorify or romanticise the painful, frightening loss of sight. But it does show that they are many depths to how we see the world. Responding to an unknown critic who condemned Picasso for painting the sky green, E M Forster wrote that he was grateful to see the world through Picasso’s eyes, if only for a few moments.

Countless people enable us to see. We see the world not just through one another’s eyes, including the beautiful eyes of guide dogs, but through each other’s hearts. Maybe that’s why I love Amazing Grace, because I not rarely fear I may have been blind to important sensitivities, and hope that ‘now I see’.

When I run tomorrow – (‘What time do you hope to finish by?’ I was just asked in an email. ‘Pesach’, I answered) – I shall think of the many people who have helped me to see, and hope that I too can occasionally help bring sight to others, – a gift which the wonderful dogs for whom I’m running have in affectionate abundance,