This is the script of this morning’s Thought for the Day on BBC Radio 4’s Today Programme:

Of the thousands of photos in my phone one I return to time and time again is of a single rose planted alone in dry soil on a parched farm in Zimbabwe. I was walking with a group from farm to farm back in 2007 – somewhere near Gweru in the Midlands Province – and listening to stories of political oppression, fear, suspicion and hope. There was no water in town (the pumps had all broken), you couldn’t get fuel, and inflation was then at only 10,000%.

Later in that trip I found myself misrepresented all over Zimbabwean media, we had problems with the secret police, and we strengthened our ties to the Church under pressure there.

That rose, watered regularly, surrounded by aridity and barrenness, spoke of defiance, of hope, of a future.

Zimbabwe was always a very beautiful land. Under Robert Mugabe it had been transformed from the breadbasket of Africa into what some have described as a basket case. Yet, no one seemed to know what to do about it. People repeatedly expressed ‘hope’ that something would change; but, few seemed ready to be the agents of change. It was all too paralysing, too threatening.

It seems a long time ago. Mugabe has retired, so to speak. Emmerson Mnangagwa has led the country into elections that appear to have been free and fair, but has been challenged by opposition parties. It looks like Mnangagwa has won a majority of seats in Parliament, but this doesn’t necessarily mean that he will continue as president. The question my Zimbabwean friends will be asking, of course, is whether the future will be bright … or a further disappointment.

And this is where hope comes in. Hope is not the same as wishful thinking. Hope for many Zimbabweans was what kept them believing that freedom would one day come. For others, it was what motivated them to put their lives on the line in order to make change happen. For neither was it entirely cost-free.

Standing by the rose near Gweru I remember hearing the words of Isaiah 40 from the Hebrew Scriptures: “Comfort, O comfort my people,… she has served her term, her penalty is paid.” It is always hard for people to hear words of comfort when the evidence of the reality around them is so bleak. But, biblical hope was never fantasy. Rather, it was always about defying ‘reality’ and being drawn by a vision of how the world might be – even when the so-called realists around you just keep saying, “the world isn’t like that”. And it has always meant getting stuck in to the world as it is.

That single rose is an emblem – an investment in the future. We will have to wait and see if Zimbabwe’s rose will continue to bloom in the new world.